High-strength three-station aluminum alloy shell for GIS equipment

Abstract

The utility model relates to a high-strength three-station aluminum alloy shell for GIS (gas insulated switchgear) equipment. The shell comprises a first pipeline and a second pipeline which are perpendicular to each other, and flanges are arranged at the two ends of each pipeline. A three-hole row conductor outlet is formed in the outer side wall of the first pipeline; an observation opening is formed in the outer wall of the bottom surface of the first pipeline; an external connection probe hole is formed in the outer side wall, opposite to the outlet of the three-hole row conductor, of the first pipeline; a plurality of mounting supporting seats are arranged on the outer walls of the top surfaces of the two ends of the first pipeline; first reinforcing ribs are arranged on the outer walls of the top surface and the bottom surface of the first pipeline, and a plurality of second reinforcing ribs are arranged on the outer wall of the junction of the first pipeline and the second pipeline. On the basis of not influencing the assembly relation of the original shell, the three-station aluminum alloy shell for the GIS equipment, which is compact in structure, smooth in transition and obviously improved in compression strength, is designed, and the safe use of the important part is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of GIS equipment components, and specifically relates to a three-station aluminum alloy shell for high-strength GIS equipment. Background Art

[0002] At present, with the further development of industrialization, the demand for electricity is further increasing, and the power transmission-related systems are booming. As an important part of the high-voltage and ultra-high-voltage power transmission and distribution field, GIS has a huge market demand. The pressure-resistant aluminum alloy shell in GIS has always been the object of continuous research by practitioners.

[0003] In recent years, as the distance of power transmission has become longer and the transmission voltage has become higher, the pressure-bearing capacity of the pressure-resistant aluminum alloy shell used has also become higher and higher. The existing three-station aluminum alloy shell in high-voltage switch GIS equipment has a pressure-bearing capacity of only 2.7Mpa, which can no longer meet the application in ultra-high voltage power transmission equipment. Therefore, it is necessary to design a new three-station aluminum alloy shell that can further improve the pressure-bearing capacity. Utility Model Content

[0004] The utility model aims to provide a high-strength three-station aluminum alloy shell for GIS equipment to solve the technical problem that the pressure bearing capacity of the three-station aluminum alloy shell for existing GIS equipment cannot meet the application in ultra-high voltage power transmission equipment.

[0005] The present application provides a three-station aluminum alloy shell for high-strength GIS equipment. The three-station aluminum alloy shell for high-strength GIS equipment comprises: a first pipe and a second pipe perpendicular to each other, and flanges are arranged at both ends of each pipe;

[0006] The outer side wall of the first pipe is provided with three-hole row conductor outlets;

[0007] An observation port is provided on the outer wall of the bottom surface of the first pipe;

[0008] An external probe hole is provided on the outer side wall of the first pipe which is opposite to the outlet of the three-hole row conductor;

[0009] A plurality of mounting support seats are arranged on the top outer walls of both ends of the first pipe; and

[0010] First reinforcing ribs are arranged on the outer walls of the top surface and the bottom surface of the first pipe, and a plurality of second reinforcing ribs are arranged on the outer wall at the junction of the first pipe and the second pipe.

[0011] In one embodiment of the present application, the first reinforcing ribs are cross-shaped and distributed along the extension direction of the first pipe and the second pipe.

[0012] In one embodiment of the present application, the second reinforcing rib includes one longitudinal rib and two transverse ribs;

[0013] The two ends of the longitudinal reinforcement are connected to the outer walls of the first pipe and the second pipe;

[0014] The two transverse ribs are respectively located on the outer walls of the first pipe and the second pipe.

[0015] In one embodiment of the present application, the observation port includes:

[0016] A first boss connected to a first pipe;

[0017] An observation hole passes through the inner and outer end surfaces of the first boss; wherein

[0018] The connection between the outer wall of the first boss and the outer wall of the first pipe is provided with an R80 fillet, and the inner end edge of the observation hole is provided with an R50 fillet.

[0019] In one embodiment of the present application, the three-hole row conductor outlet comprises:

[0020] A second boss connected to the first pipe;

[0021] Three through holes, passing through the inner and outer end surfaces of the second boss;

[0022] The thickness of the second boss is 30 mm.

[0023] In one embodiment of the present application, the width of the first reinforcing rib is 75 mm and the thickness is 7 mm.

[0024] In one embodiment of the present application, a R15 fillet is provided at the connection between the second reinforcing rib and the outer wall of the pipe.

[0025] The beneficial effects of the utility model are:

[0026] Different from the prior art, the present application provides a three-station aluminum alloy shell for high-strength GIS equipment. The three-station aluminum alloy shell for high-strength GIS equipment includes a first pipe, a second pipe, a flange, a three-hole row conductor outlet, an observation port, an external probe hole, a plurality of mounting support seats, a first reinforcing rib and a second reinforcing rib. On the basis of not affecting the assembly relationship of the original shell, a three-station aluminum alloy shell for GIS equipment with a compact structure, smooth transition and significantly improved compressive strength is designed, which ensures the safe use of this important component.

[0027] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 This is a top perspective view of a three-station aluminum alloy housing for high-strength GIS equipment according to a preferred embodiment of the utility model;

[0031] Figure 2 This is a bottom-up stereogram of a three-station aluminum alloy housing for high-strength GIS equipment according to a preferred embodiment of the utility model;

[0032] Figure 3 It is a top view of a three-station aluminum alloy housing for high-strength GIS equipment according to a preferred embodiment of the utility model;

[0033] Figure 4 This is a partial enlarged view of a three-station aluminum alloy housing for high-strength GIS equipment according to a preferred embodiment of the utility model;

[0034] Figure 5 It is a cross-sectional view of an observation port of a three-station aluminum alloy shell for high-strength GIS equipment according to a preferred embodiment of the utility model.

[0035] In the figure:

[0036] First pipe 1, second pipe 2, flange 3, three-hole row conductor outlet 4, second boss 41, through hole 42, observation port 5, first boss 51, observation hole 52, R80 fillet 53, R50 fillet 54, external probe hole 6, mounting support seat 7, first reinforcing rib 8, second reinforcing rib 9, longitudinal rib 91, transverse rib 92, R15 fillet 93. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The present application provides a three-station aluminum alloy shell for high-strength GIS equipment, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0039] See also Figure 1 , Figure 2 and Figure 3 An embodiment of the present application provides a three-station aluminum alloy shell for high-strength GIS equipment, including: a first pipe 1 and a second pipe 2 perpendicular to each other, each pipe having a flange 3 at both ends; a three-hole row conductor outlet 4 is provided on the outer wall of the first pipe 1; an observation port 5 is provided on the bottom outer wall of the first pipe 1; an external probe hole 6 is provided on the outer wall of the first pipe 1 opposite to the three-hole row conductor outlet 4; a plurality of mounting support seats 7 are provided on the top outer walls of both ends of the first pipe 1; and first reinforcing ribs 8 are provided on the top and bottom outer walls of the first pipe 1, and a plurality of second reinforcing ribs 9 are provided on the outer wall at the junction of the first pipe 1 and the second pipe 2.

[0040] In this embodiment, preferably, the first reinforcing rib 8 is cross-shaped and distributed along the extension direction of the first pipe 1 and the second pipe 2; the first reinforcing rib 8 has a width of 75 mm and a thickness of 7 mm.

[0041] In this embodiment, preferably, see Figure 4 The second reinforcing rib 9 includes a longitudinal rib 91 and two transverse ribs 92; the two ends of the longitudinal rib 91 are connected to the outer walls of the first pipe 1 and the second pipe 2; the two transverse ribs 92 are respectively located on the outer walls of the first pipe 1 and the second pipe 2; an R15 fillet 93 is provided at the connection between the second reinforcing rib 9 and the outer wall of the pipe.

[0042] In this embodiment, in order to further improve the pressure bearing capacity of the shell and ensure that the breaking pressure can reach the requirement of 4.0Mpa or above, a "cross" first reinforcing rib 8 with a width of 75mm and a convex height of 7mm is specially designed on the upper and lower surfaces of the shell. In addition, two second reinforcing ribs 9 are added at the junction of the two flanges of the first pipe 1 and the second pipe 2 with weak mechanical properties, and R15 chamfers are used to maximize the overall pressure bearing capacity of the three-station shell.

[0043] See also Figure 5In the present embodiment, preferably, the observation port 5 comprises: a first boss 51 connected to the first pipe 1; an observation hole 52 penetrating the inner and outer end surfaces of the first boss 51; wherein an R80 fillet 53 is provided at the connection between the outer wall of the first boss 51 and the outer wall of the first pipe 1, and an R50 fillet 54 is provided at the inner end edge of the observation hole 52.

[0044] See also Figure 1 In this embodiment, preferably, the three-hole row conductor outlet 4 includes: a second boss 41 connected to the first pipe 1; three through holes 42 running through the inner and outer end surfaces of the second boss 41; wherein the thickness of the second boss 41 is 30 mm.

[0045] In this embodiment, the position and outer contour size of the three-hole row conductor outlet 4 remain unchanged to ensure online assembly; the internal structure is optimized to adopt a follow-up structure, and the end face thickness is 30 mm. This design comprehensively considers weight reduction, casting feasibility and structural mechanical properties.

[0046] In summary, after the production of the three-station aluminum alloy shell for high-strength GIS equipment in this application, the destructive pressure test burst pressure value reached 4.86MPa, and the compressive strength was significantly improved. At the same time, the product weight remained consistent with the original three-station shell, and the production cost did not increase. This design overcomes technical difficulties and achieves the requirement of a destructive pressure value greater than 4.5MPa without affecting the requirements of online equipment. At the same time, the shell structure of this design is compact, the transition is smooth, and the appearance is beautiful.

[0047] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0048] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A three-station aluminum alloy shell for high-strength GIS equipment, characterized in that: include: The first pipeline and the second pipeline are perpendicular to each other, and flanges are arranged at both ends of each pipeline; The outer side wall of the first pipe is provided with three-hole row conductor outlets; An observation port is provided on the outer wall of the bottom surface of the first pipe; An external probe hole is provided on the outer side wall of the first pipe which is opposite to the outlet of the three-hole row conductor; A plurality of mounting support seats are arranged on the top outer walls of both ends of the first pipe; and First reinforcing ribs are arranged on the outer walls of the top surface and the bottom surface of the first pipe, and a plurality of second reinforcing ribs are arranged on the outer wall at the junction of the first pipe and the second pipe.

2. The three-station aluminum alloy housing for high-strength GIS equipment according to claim 1 is characterized in that: The first reinforcing ribs are cross-shaped and distributed along the extension direction of the first pipe and the second pipe.

3. The three-station aluminum alloy housing for high-strength GIS equipment according to claim 1 is characterized in that: The second reinforcing rib comprises one longitudinal rib and two transverse ribs; The two ends of the longitudinal reinforcement are connected to the outer walls of the first pipe and the second pipe; The two transverse ribs are respectively located on the outer walls of the first pipe and the second pipe.

4. The three-station aluminum alloy housing for high-strength GIS equipment according to claim 1 is characterized in that: The observation port comprises: A first boss connected to a first pipe; An observation hole passes through the inner and outer end surfaces of the first boss; wherein The connection between the outer wall of the first boss and the outer wall of the first pipe is provided with an R80 fillet, and the inner end edge of the observation hole is provided with an R50 fillet.

5. The three-station aluminum alloy housing for high-strength GIS equipment according to claim 1 is characterized in that: The three-hole conductor outlet comprises: A second boss connected to the first pipe; Three through holes, passing through the inner and outer end surfaces of the second boss; The thickness of the second boss is 30 mm.

6. The three-station aluminum alloy housing for high-strength GIS equipment according to claim 1 is characterized in that: The first reinforcing rib has a width of 75 mm and a thickness of 7 mm.

7. The three-station aluminum alloy housing for high-strength GIS equipment according to claim 1 is characterized in that: The connection between the second reinforcing rib and the outer wall of the pipe is provided with an R15 fillet.

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